Struct ArrowRowGroupWriterFactory

pub struct ArrowRowGroupWriterFactory { /* private fields */ }

Factory that creates new column writers for each row group in the Parquet file.

You can create this structure via an ArrowWriter::into_serialized_writer. See the example on ArrowColumnWriter for how to encode columns in parallel

Implementations

impl ArrowRowGroupWriterFactory

pub fn new<W: Write + Send>( file_writer: &SerializedFileWriter<W>, arrow_schema: SchemaRef, ) -> Self

Create a new ArrowRowGroupWriterFactory for the provided file writer and Arrow schema

pub fn create_column_writers( &self, row_group_index: usize, ) -> Result<Vec<ArrowColumnWriter>>

Create column writers for a new row group, with the given row group index

Trait Implementations

impl Debug for ArrowRowGroupWriterFactory

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.